690094 has 4 divisors (see below), whose sum is σ = 1035144. Its totient is φ = 345046.

The previous prime is 690089. The next prime is 690103. The reversal of 690094 is 490096.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172522 + ... + 172525.

It is an arithmetic number, because the mean of its divisors is an integer number (258786).

2⁶⁹⁰⁰⁹⁴ is an apocalyptic number.

690094 is a deficient number, since it is larger than the sum of its proper divisors (345050).

690094 is a wasteful number, since it uses less digits than its factorization.

690094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345049.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 690094 is about 830.7189657158. The cubic root of 690094 is about 88.3695717774.

It can be divided in two parts, 6 and 90094, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 690094 in words is "six hundred ninety thousand, ninety-four".